144949-48-4

Upstream product

• 67-56-1 methanol 
• 144949-47-3 4-bromo-5-nitroisophthalic acid 

Downstream Products

• 731810-21-2 dimethyl 5-nitro-4-(phenylethynyl)isophthalate 
• 148528-27-2 5-Amino-4-[2-(2-butyl-2-ethoxycarbonyl-hexanoylamino)-phenoxy]-isophthalic acid dimethyl ester 
• 220442-52-4 4-amino-5-(2,4-diisopropyl-benzoylamino)-9-oxo-9H-xanthene-2,7-dicarboxylic acid bis-(2-methoxy-ethyl) ester 
• 654642-46-3 dimethyl 5-amino-4-(4-tert-butyl-2-nitrophenoxy)isophthalate 
• 148528-26-1 5-Nitro-4-(2-nitro-phenoxy)-isophthalic acid dimethyl ester 
• 612058-82-9 dimethyl 4-(4-tert-butyl-2-nitrophenoxy)-5-nitroisophthalate 

Relevant academic research and scientific papers

A xanthone-based neutral receptor for zwitterionic amino acids

Combination of a xanthone and crown ether provides a receptor that extracts phenylalanine from water. Strong anisotropic shifts were observed for the guest aromatic ring in the complex. The ninhydrin test was used to assess the amount of other amino acids extracted by this receptor.

Poly-iodinated compounds, process for their preparation, contrast medium containing them

The invention relates to novel poly-iodinated compounds of general formula: STR1 in which R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10, identical or different, are selected from an iodine atom, a group of formula STR2 provided that at least two of the R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 groups represent an iodine atom, utilizable in contrast media for radiography. The invention also relates to a process for the preparation of these compounds as well as a contrast medium containing them.